Well,
Since I have until the first week of January 2016 to return the iPad Pro, I might as well keep it as use it until then and wait for some public news that surfaces about the yellow screen being an issue in the iPad Pros or not, as I realiy do not want to be doing what Abacus was doing with constant returns and sampling the Apple Store inventory.
If it is announced as a defect, I will definitely be returning mine at that point.
As it is now, there is no proof that this is a defect or not and just Apple usng a different screen supplier.
Obviously, I am not very bothered by the tempeature color of the screen as I work with my own iMac which is setup for this color temperature for my work.
This is, probably, why I am not too perturbed about this. Some users prefer a cooler bluer color hue screen than one that is more warmer and has more yellow hue to the screen.
I'll wait this out to see what transpires over the next month or so.
All of you can do as you will, also.
Good Luck!